CN201368255Y

CN201368255Y - Constant-temperature constant-pressure pipeline valve

Info

Publication number: CN201368255Y
Application number: CN200920051615.1U
Authority: CN
Inventors: 谢庆俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-20
Filing date: 2009-02-20
Publication date: 2009-12-23
Anticipated expiration: 2019-02-20
Also published as: GB2467988A; AU2009100638A4; GB2467988B; GB0911690D0

Abstract

The utility model relates to a constant-temperature constant-pressure pipeline valve comprising a valve body, a return spring, a thermosensitive element, an adjustor, an adjusting screw rod, and a valve core body, wherein, a cold water inlet and a hot water inlet are formed in different height positions on the side wall of the valve body the thermosensitive element and the return spring drive the adjustor to float up and down in the inner chamber of the valve body, an adjusting opening is formed on the adjustor for controlling the sizes of the cold water inlet and the hot water inlet, a first seal ring capable of sealing the cold water inlet and a second seal ring capable of sealing the cold water inlet are arranged at the periphery of the adjustor, and a mixing water outlet is formed at the bottom end of the valve body. In case of abnormal cold or hot water supply, the utility model can cut off cold water supply or hot water supply separately to avoid scald and to prevent inconvenience caused by extremely temperature of cold water. In addition, because of the seal rings axially sealing the cold and the hot water inlets, the utility model is simple in structure.

Description

Constant temperature balance tube road valve

Technical field

The utility model relates to the plumbing technical field, relates in particular to constant temperature balance tube road valve.

Background technique

Progress and growth in the living standard along with science and technology, pipeline valve with constant temperature function has been widely used in various bathing water systems such as family, hotel, its characteristics are, the user can adjust coolant-temperature gage according to actual needs voluntarily, after temperature is set, mix effluent temperature constancy, can avoid the common pipe valve because of the sometimes hot and sometimes cold problem of water-exit temperature that intake pressure changes and the temperature instability causes, safety is anti-scald.

Effectively the key point of control effluent temperature constancy is the water-exit temperature that sensing is authentic and valid, and the ratio that can regulate cold and hot water inlet delicately.The water-exit temperature that described sensing is authentic and valid is meant that hot and cold water will fully mix, the temperature of sensing mixing water outlet, and this point prior art can solve comparatively perfectly.

General Constant-temp. pipeline valve in the market only loses for effect is arranged cold water, promptly when the unexpected mistake of cold water inlet supplies, blends water flow and reduces to minimum rapidly even close; Do not do under the deposition attitude effectively to handle but hot water is lost, blending water flow can not reduce to minimum rapidly even close, this makes the user have hidden danger at arctic weather, the easy frostbite of user or uncomfortable when situation takes place, existing product can not reach the requirement of TMV3 authentication, and (the TMV authentication is the independently third party certification scheme of being managed by BuildCertTM, be the norme superieure that the thermostatic mixing valve of auth type 3 meets the mixing valve NHS Estates D08 standard that is used for health care in UK, also auth type 2 improves domestic hot water's safe handling at English market with the thermostatic mixing valve that prevents children's accident).In addition, the hot and cold water inlet sealing of traditional Constant-temp. pipeline valve all is to adopt the regulator-end face seal, and sealing effect is bad, and performance is unreliable, and sealing surface requires the machining accuracy height.

The model utility content

The utility model provides a kind of constant temperature balance tube road valve, and purpose is on the basis of constant temperature function, and by simple structure, it is very little influenced by hot and cold intake pressure, has adopted rubber axial seal to regulate the function that cold and hot water inlet gap realizes that weighing apparatus is pressed.

Above-mentioned purpose is realized by following technological scheme:

A kind of constant temperature balance tube road valve comprises valve body, Returnning spring, thermosensitive element, regulator, adjusting screw rod, valve core, different heights is provided with cold water intake and hot water intake on the body wall, valve body upper end open place is provided with valve core and adjusting screw rod, the adjusting screw rod lower end is replaced with the thimble of thermosensitive element and is cooperated, the temp.-sensing head of thermosensitive element and then replace with regulator cooperates, the regulator below is provided with Returnning spring, regulator is fluctuated at body cavity by the driving of thermosensitive element and Returnning spring, and the valve body bottom is provided with and blends the mouth of a river; It is characterized in that: offer the adjusting mouth of regulating described cold water intake and hot water intake size on the regulator, the regulator outer rim is provided with first seal ring of salable cold water intake and second seal ring of salable cold water intake.

Structure of the present utility model occurs when unusual in hot and cold water supply, can block cold water supply respectively or heat supplies water, and has both avoided scalding, and also can prevent the cool excessively discomfort that causes of cold water; In addition, the utility model has adopted the cold and hot water inlet of seal ring axial seal, and is simple in structure.The utility model can bear bigger hot and cold water inlet pressure reduction ratio than general Constant-temp. pipeline valve, and it is stable, safe and reliable to be not more than 6: 1 o'clock product performance in cold and hot intake pressure difference, can satisfy the requirement of TMV3 authentication.

Description of drawings

Fig. 1 is the sectional view of the utility model constant temperature balance tube road valve.

Embodiment

As shown in Figure 1, the constant temperature balance tube road valve that provides of embodiment comprises valve body 1, Returnning spring 2, thermosensitive element 3, regulator 4, adjusting screw rod 5, valve core 6, block seat 7, block 8, first seal ring 9, second seal ring 10 and collar 101.

Valve body 1 left and right sides is provided with cold water joint 11 and hot water joint 12 respectively, and the corresponding cold water joint of different heights and hot water joint are provided with cold water intake 111 and hot water intake 121 on valve body 1 sidewall.Valve body 1 upper end open place is provided with valve core 6, and adjusting screw rod 5 cooperates with the interior threaded hole of valve core 6.Valve core 6 is stretched out in adjusting screw rod 5 upper ends, is used for artificial setting temperature, and collar 101 is set on the adjusting screw rod 5, is used to limit the up and down scope of temperature adjustment screw rod; Adjusting screw rod 5 lower ends are replaced with the thimble of thermosensitive element 3 and are cooperated, and the temp.-sensing head of thermosensitive element 3 and then replace with regulator 4 cooperates, and regulator 4 belows are provided with Returnning spring 2.Regulator 4 is pasting valve body 1 inwall setting, be subjected to the driving of thermosensitive element 3 and Returnning spring 2, can fluctuate at valve body 1 inner chamber, offer on the regulator 4 and regulate mouth 41, when regulator 4 fluctuates, regulate mouthfuls 41 respectively with the size of cold water intake 111 and hot water intake 121 intersection, determine the ratio of hot and cold water inlet.Regulator 4 outer rims are provided with first seal ring 9 and second seal ring 10 up and down respectively at adjusting mouth 41, are used for realizing sealing.Valve body 1 top is provided with block seat 7, is equipped with block 8 on the block seat 7, thereby after temperature is set adjusting screw rod 5 is covered.Valve body 1 bottom is provided with and blends the mouth of a river 131 and water output connector 13.

Below in conjunction with description of drawings working principle of the present utility model: direction shown in three arrows is respectively cold water (C), hot water (H) water inlet direction and mixes water outlet (Mix) direction among Fig. 1, cold water flows into regulator 4 by valve body 1 and first seal ring, 9 gaps, and hot water flows into regulator 4 by valve body 1 and second seal ring, 10 gaps; Hot and cold water abundant mixing in regulator 4 cavitys contacts with thermosensitive element 3, when hot water end intake pressure is raise by ectocine increase or hot water temperature, mixing water can raise suddenly to surpass and just establish temperature, this moment, thermosensitive element 3 was by meeting thermal expansion character promotion adjusting screw rod 5, adjusting screw rod 5 is fixing can not moving when just establishing temperature, so thermosensitive element 3 is subjected to reaction force to drive regulator 4 to lower slider, second seal ring, 10 gaps on valve body 1 and the regulator 4 are reduced, and just hot water intake 121 turns down and makes the mixing water temperature recover just to establish temperature; When hot water end intake pressure is reduced by ectocine or hot water temperature when reducing, mixing water can be lower than suddenly just establishes temperature, this moment, thermosensitive element 3 was dragged adjusting screw rod 5 away from by meeting cold shrinkage character, adjusting screw rod 5 is fixing can not moving when just establishing temperature, so have the gap with thermosensitive element 3, be subjected to the tension force effect of Returnning spring 2 that regulator 4 is moved up this moment, valve body 1 reduces with second seal ring, 9 gaps of regulator 4, and just cold water intake 111 turns down and makes the mixing water temperature recover just to establish temperature; Otherwise regulator 4 actions then when situation of the same race appears in cold water.

Just establishing temperature is to regulate cold and hot water inlet gap control mixing water temperature by turn adjusting screw rod 5, and cold and hot water inlet enters in the regulator 4 through valve body 1, and hot water contacts with thermosensitive element 3 and fully mixes in valve body 1 cavity after blend the mouth of a river 131 outflows.

Claims

1. a constant temperature balance tube road valve comprises valve body, Returnning spring, thermosensitive element, regulator, adjusting screw rod, valve core, different heights is provided with cold water intake and hot water intake on the body wall, valve body upper end open place is provided with valve core and adjusting screw rod, the adjusting screw rod lower end is replaced with the thimble of thermosensitive element and is cooperated, the temp.-sensing head of thermosensitive element and then replace with regulator cooperates, the regulator below is provided with Returnning spring, regulator is fluctuated at body cavity by the driving of thermosensitive element and Returnning spring, and the valve body bottom is provided with and blends the mouth of a river; It is characterized in that: offer the adjusting mouth of regulating described cold water intake and hot water intake size on the regulator, the regulator outer rim is provided with first seal ring of salable cold water intake and second seal ring of salable cold water intake.

2. constant temperature balance tube according to claim 1 road valve is characterized in that: described valve body top is provided with the block seat, is equipped with block on the block seat.

3. constant temperature balance tube according to claim 1 road valve, it is characterized in that: described adjusting screw rod is provided with collar.